Pith Number

pith:JYSECXK3

pith:2005:JYSECXK3J2QT2QJB5RNCDH72AB

not attested not anchored not stored refs pending

Early BVRcIc imaging and the discovery of the optical afterglow of GRB 041218

Hiroshi Tsunemi, Ken'ichi Torii, Yuuichi Fukazawa

arxiv:astro-ph/0505239 v1 · 2005-05-12 · astro-ph

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{JYSECXK3J2QT2QJB5RNCDH72AB}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-07-04T16:52:21.969272Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4e24415d5b4ea13d4121ec5a219ffa004a9ae8d178823c983d1f320865b49b0c

Aliases

arxiv: astro-ph/0505239 · arxiv_version: astro-ph/0505239v1 · doi: 10.48550/arxiv.astro-ph/0505239 · pith_short_12: JYSECXK3J2QT · pith_short_16: JYSECXK3J2QT2QJB · pith_short_8: JYSECXK3

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/JYSECXK3J2QT2QJB5RNCDH72AB \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 4e24415d5b4ea13d4121ec5a219ffa004a9ae8d178823c983d1f320865b49b0c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "961712a068d32c4fadec15f49c681eb4ff5f70ff0cd4dfbf2368d6f5c008528f",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2005-05-12T00:53:40Z",
    "title_canon_sha256": "c83dff060da2ae04b513a5536b57af337d0219aad85caa0adbdc8d460f99e5a9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0505239",
    "kind": "arxiv",
    "version": 1
  }
}